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I can't tell from the results you've posted whether T3 and T4 are high. Can you post the ranges (the figures in brackets after the results)?

If T3 and T4 have been high it can inflame your thyroid gland which may be why you are experiencing pain and choking. The Methimazole will reduce your T4 and T3 levels and any inflammation or enlargement may subside.

I am not a medical professional and this information is not intended to be a substitute for medical advice from your own doctor. Please check with your personal physician before applying any of these suggestions.